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Physics GCSE > Space > Flashcards

Space Flashcards

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1
Q

Aldebaran

A

an example of a red supergiant

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2
Q

Alpha Centauri

A

the closest star system to Earth, made up of three stars

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3
Q

Asteroid Belt

A

separates rock planets from gas planets

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4
Q

Average Star Size

A

less than four times the size of the Sun

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5
Q

Betelgeuse

A

a highly unstable red supergiant approximately 600 light years away

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6
Q

Big Bang Theory

A

the theory that the universe expanded from a single point in space

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7
Q

Big Crunch Theory

A

the theory that the universe will expand until it reaches at certain point, and the reduce back into nothing, and at the point of nothingness, a new Big Bang will happen

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8
Q

Big Yawn Theory

A

theory that universe will keep expanding forever

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9
Q

Black Dwarf

A

when a star cools and eventually becomes a black mass that emits no light, so it will spend the rest of eternity drifting through space

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10
Q

Blackhole

A

a stage of star death after supernova, leaving behind a huge mass with so much gravity even light is prevented from leaving it, and can suck in nearby stars and solar systems

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11
Q

Blue Giant

A

a phase in the life cycle of a massive star, where a star burns so hot it becomes blue

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12
Q

CMBR

A

Cosmic Microwave Background Radiation

the energy left over after the Big Bang, furhter evidence for the Big Bang

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13
Q

Doppler Effect

A

where the wavelength of a sound changes as something moves, making the sound high pitched as it comes towards you and low pitched as it moves away

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14
Q

Dwarf Planets

A

planets too small to be classed as proper planets

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15
Q

Pluto

A

beyond Neptune, used to be classed as a planet until more accurate measurements were done, the biggest dwarf planet

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16
Q

Ceres

A

dwarf planet just beyond Mars, may sustain life

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17
Q

Eris

A

second-largest dwarf planet after Pluto

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18
Q

Makemake

A

dwarf planet roughly sixty percent the size of Pluto

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19
Q

Galaxy

A

group of stars

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20
Q

GEO

A

a manmade satellite that orbits the Earth in 1 day

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21
Q

Goldilocks Zone

A

area in a solar system where conditions are perfect to support life

22
Q

Gravity

A

forces that keep everything in place in the solar system

23
Q

HST

A

a manmade satellite that orbits the Earth in 97 minutes

24
Q

Lageos

A

a manmade satellite that orbits the Earth in 3.8 hours

25
Q

Main Sequence Star

A

stars such as the Sun, which last for approximately 10000000000 years, our sun is about halfway through

26
Q

Massive Star

A

a star more than four times the size of the Sun

27
Q

Multiverse

A

the theory that there are multiple universes

28
Q

Nebulae

A

clouds of dust and gas

29
Q

Neutron Star

A

a celestial object formed mainly of very high density neutrons, the fate of most smaller massive stars

30
Q

Oscillating Universe Theory

A

the theory that our universe was created by another universe ending

31
Q

Planet

A

things that orbit stars, with satellites orbitting them

32
Q

Mercury

A

the smallest and hottest planet

33
Q

Venus

A

second planet, named after the Roman goddess of love, covered in poisonous gas

34
Q

Earth

A

third planet, only one known to support life

35
Q

Mars

A

fourth planet, used to have water, has mountains, may sustain life, has lots of iron

36
Q

Jupiter

A

fifth planet, biggest planet, has a red storm that has been raging for over 300 years

37
Q

Saturn

A

sixth planet, famous for rings

38
Q

Uranus

A

seventh planet, also has rings

39
Q

Neptune

A

the last and coldest planet

40
Q

Planetary Nebula

A

an expanding shell of gas around a red giant that makes it form a white dwarf

41
Q

Protostar

A

huge clouds of hydrogen gas in which stars are made, many thousands of times bigger than our solar system, as the clouds collapse stars are born in them

42
Q

Red Dwarf

A

a very low mass main sequence star

43
Q

Red Giant

A

as the sun runs out of hydrogen the outer layers of the sun become cooler and they expand massively, when this happens to the sun, Mercury, Venus, Earth and Mars will be swallowed up

44
Q

Red Ring

A

where outer layers of a supernova rebound off the core in a shockwave

45
Q

Red Shift

A

where light from other galaxies has a longer wavelength than expected, showing that galaxies are moving away very quickly, indicating that the further the galaxy is, the faster iti s moving, proving that the universe is expanding and has been since approximately 13.6 billion years ago

46
Q

Red Supergiant

A

one of the stages of death that only affects stars more than four times larger than the Sun

47
Q

Satellite

A

something that orbits a planet

48
Q

Solarsystem

A

a star and its orbitting planets

49
Q

Stellar Nebula

A

clouds of dust and gas in space that form stars

50
Q

Supernova

A

the largest and most powerful explosions in the universe, where red supergiants literally blow themselves apart, all atoms are originally made from supernova explosions

51
Q

White Dwarf

A

gravity causes the red giant to collapse into a small white star with a raidus of 5000 to 6000 km but still has the same mass as the sun

52
Q

Wormhole

A

theory that there are holes in space that can transport things to other places in space

Physics GCSE (13 decks)

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